Road and rail vehicle



April 1931. w. E. EDGCUMBE-RENDLE 1,800,009

ROAD AND RAIL VEHICLE Filed June 2, 1930 3 Sheets-Sheet l April 7, 1931. w. E. EDGCUMBE-RENDLE ROAD AND RAIL VEHICLE Filed Jim 2, 1930 '3 Shefs-Sheet 2 April 7, 1931. w. E. EDG'CUMBE-RENDLE 1,800,009

ROAD AND RAIL VEHICLE Filed June 2, 1930 3 Sheets-Sheet 3 a of Figure 1.

Patented Apr. 7, 1931 earner 1 WILLIAIE nnecunnn inieonnsnnnnnz-n, or Lennon, nnGLAnn ROAD All'D RAIL VEHICLE Application filed June 2, 1930, Serial No. 458,950, and in Great'Britain April 7, 1930.

-'. vided with a carrier which can he moved into and out of aposition coaxial with respect to the axle of the vehicle, the carrier when in the coaxial position being adapted to receive a road wheel which can be placed in driving connection with a flanged wheel and when out of coaxial position supports theroad wheel in its inoperative position I -The' carrierpreferably comprisesan axle secured eccentrically to a member such as a disc rotatably mounted in a support which may conveniently comprise a casing.

The invention is illustrated in the accompanying'drawings in which Fig. 1 is a vertical section through the wheel carrier and Teasing, Fig. 2 shows in side elevation the device upon a rail track and prior to the change over from the road to the rail wheel and Fig. 3 shows also in side elevation the position of the parts of the device after the change over from the road torail wheel. Figure 4 shows the device as applied to the rear, pair of wheels on a six-wheel vehicle whilst Figures I is a cross sectional view taken on the line Referring to Figure 1, 1 is a detachable road wheel of the loose ring type which when the said vehicle is to be run upon the road or like surface is mounted in the position shown in Figure 1 upon the hub 2 of a flanged wheel 3,-itself mounted upon the axle 3 of the vehicle, the hub being provided with keys 2 for transmitting drive from the axle 3 to the road wheel 1. l is a loose ring which is secured to the road wheel hub 5 and is internally threaded at 6 to engage with a threaded portion 7 of a hollow fixed axle 8, which is eccentrically secured to a disc 9 mounted on bearings 10 so as to rotate in a casing 11. Journalled within the axle'8 is a shaft 12 upon which are mounted cams 13 each of which carries a spring controlled arm 14 which upon rotation of the shaft 12 is adapted to project through the fixed axle and engage in-a recess 14 in the hub 5 of the road wheel 1 so as securely to hold it and lock upon the threaded portion 7 of the fixed axle 8. The disc 9 is provided with a hole 15 to receive a key to actuate the said shaft 12.

Preferably the fixed axle Sis of such a length that it extends slightly within the loose ring 4; which rotates around it and the thread provided on theportion 7 of the fixed axle is of such dimensions as to leave a smooth surface at the free endthereof. It will be seen'tha-t the fixed axle plays the same part as the usual huh-cap. I I

To the disc 9 is secured by aspring controlled pin 16 passing therethrough a lever 17 which is normally urged by the spring into engagement with a catch 18 fast on the c asing 11. ,Two such catches 18 are provided diametrically opposite one another,. one catch 18 for preventing rotation of the disc 9 when the road wheel 1 is carried upon the fixed axle S and the other catch18 for aligning the fixed axle parallel with the flanged wheel huh 2 when the road wheel 1 is in the operative position.

The casing 11 is U-shaped incross section and is mounted, in the case of the front wheels, on the stub axle and, in the case of the back wheels, upon the back axle casing and is adapted to encloseboth the road wheel 1 and the flanged wheel 3, thus taking the place of the usual vehicle mud-guard.

Referring now to Figure 2 the device is shown with the flanged wheel 3 running upon a rail 19. 20 is a ramp up which the vehicle is run when it is desired to engage with the rail track or conversely down which it is run when it is desired to run oil the rail track and on to the road surface. The parts are shown in their positions ust prior to the raising of the road wheel fast with the fixed axle to the position shown in Figure 3. In this figure the road wheel 1 has been raised to such a. height that it is clear of any normal obstruction, the vehicle running over the rail track upon the flanged wheel 3.

It will be obvious that the road wheel is of larger diameter than the flanged wheel so that, when running on the road, the flanged wheel cannot contact with the road surface. lVhen it is desired to run the vehicle upon the rail track, the road wheel is detached from the flanged wheel hub and carried upon the fixed axle.

This operation is eliected in the following manner: The vehicle is run up the ramp on to the rail track 19 with the flanged wheels 3 resting thereon, the road wheels 1' being clear of the ground on eitherside "of the track; hence jacking up of the vehicle is i dispensed with. The :loose I'1I1g 4 1S-i;l19n

rotated so as to disengage with the threaded portion of the flanged wheel hub "2which rotation withdraws the road wheel from off the flanged wheelhub. The road wheel '1 is then slidden across the sniooth,po rtion at tliemfree endof'the 'fixed axle 8, whichin View of its proximity to the hub oflthe flanged wheel acts as a guide "for I11O\"EI11GI1t :O'f'l'l18 road wheel 1,until'theinternal thread G on the loosering engageswith the threadedportion 7 of thefixed axle,theloose ring being then screwed to'the end of thethreaded portion 7 ofthe fixedax'le. In order tolo'ckthe road wheel 1 in'position on'theflfixed axle 8, the shaft'12 therein isrotate'd by a keyinsertedthrough'the hole 15 in'the casingfll. The cams 13 on (the said shaft'l2 then'move the arms-14 against the action oftheir springs into engagement with; the hub of; the road wheel 1, which is therebylocked against rotation on said axle. I

In order to raise the road wheel 1 so jasto be-clear-of any obstruction, the lever f1? is pulled out of engagement with the cat-ch18 against tho-action .of t-he springonthe pin 16 and the disc 9 is then rotated by-the-lever 17 through 180. The'fixed, axle 8 beingfleccentrically secured to the saidYdis-c 9 isthercby .to the'position shown in Figure 3, or in dot-and pecltlin-es in Figure '1 the lever 17-then being releasedand due to'the action of the spring it is foreed into en agenient with the catch 18- whereby an, further movement ofthe disc }9 and axle S'fast therewith is prevented.

To lower the, roadwheel 1. the reverse operation isefiected and to unlock the said wheel from the threaded portion 7-01? the fixed axle 8, the shaft 12 is rotated thereby Allowing "the arms 14 in contact-with the cams 13 to return to their normal position under the action of their springs. Then the loose ring .4: is-rotate'd until the wheel 1 is secured in; position on the hub 2 of the flanged wheel 3.

As shown in'Figure 4- the casingll is extended so as to enclose two sets ofroad wheels and flanged wheels such as are used on six wheel road and; rail vehicles.

In the modification shown in Figures5 and G-the fixediaxle comprises two portions 2-1 and 22, the'threadcd portion 22"oeing, so mounted uponthe otherportion as'to allow of an eccentric moven'ient thereb'etween. The portion 21 of'the axle is'tastwith the securing theroad wheel. 1 upon the fixed axle is identical witlrtliat described with reference-to Figure 1. In order to raise the road wheel from this position, the lock nut is sl'a'ckened. This freeszthethreaded portion 22 of the fixed axle so that it can be rotated about the-fixed'portion'21. Since the road wheel 1 is held fast with the threaded-portion 22, it isnow capable of movement in a vertical plans. It is then rotated and in View of the'eccentric mounting ofthefixed axle the road wheel is thereby raised, the arm 24'fast with the fixed axle moving in the serni circular slot 23. VVhen the road wheel 11m been moved through 180, the-lock nut- 25 is tightened -'and-the;road wheel'thereby locked C111 the raised 'position, The reverse operation -is eiiocted to lower the wheel and secure it upon "the hub V 2 fof'the {flanged wheel i e "lVhat Iclaim isi 1. In a road and rail vehicle, -'a carrier which can-be moved into and out oft-a position coaxial with resia'ec'tlto the-axle of said vehicle,v said -carrier, when in' the coaxial position; being adapted as "receive -ar'o'ad wheel which-can be displaced from driving connection with 'a fianged'wheel, {and when out of coaxialiposit-ion', supports-said ro'a'dwheel'in its inoperativeposition., I

.In award and rail Vehicle/the combinaion of afianged wheel, a road wheel, and a carrierunountedto henioved into and out of a position coaxial witlrrespect to the axle of said vehicle, said carrier,"whenin the-coaxial position, being adapted to receive 'rsa id road wheel which can be displaced from driving connection with said flangedwheehand when out of coaxialposition supports said road wheel in its inoperative'position.

3. Ina road andrail Vehicle, the combination ofa flanged wheel, a road'wh-eel, a carrier mountedto'be moved into andout of a position coaxialwithrespecttdthe axle of said vehicle, said carrier,when inthe coaxiai position, being adapted to :receive "said -road wheel which can be displaced from dririn g connection with said flanged wheel, and when out of coaxial position, supports said road wheel in its inoperative position, an'd'means for securing said road'wheelon said carrier and on the hub of said flanged wheel.

'4. In a road and rail'vehiclefthe'combination of 'afianged wheel, a road wheel, a carrier mountedtobe moved into and out of -aposi tion coaxial with-respectto the axle-of said veliic le','said carrier, when ,in the coaxial position, being j adapted to receive said road wheel which can be displaced from driving connection with said flanged wheel, and when out", of coaxial position supports said ,road wheel in its inoperative position, and means for lockingsaid road wheel against rotation whenin,its inoperativeposition on said carrier.

5. In a'road and rail vehicle, the combination of a flanged wheel, a road wheel, a carrier mounted to be moved into and out of a position,co axial with respect "to the axle of said vehicle, said carrier, when-in the coaxial position, being adapted to receive said road wheel which can be displaced from driving connection with said flanged wheel, and when out of coaxial positionsnpports said road wheel in its inoperative position, means for securing said road wheel on said carrier and onthe hub of saidfianged wheel, and means for, locking said roadwheel against rotation w'hcnin its inoperative position on said carrier N 7;

6. In a road and rail vehicle, the combination of a flanged wheel, a road wheel, a hollow carrier mounted to be moved into and out of a position coaxial with respect to the axle of said vehicle, said hollow carrier, when :n the coaxial position, being adapted to receive said road wheel which can be displaced from driving connection with said flanged wheel and when out of coaxial position supports said road wheel in its inoperative position, a shaft mounted in said hollow carrier, cams mounted on said shaft, and spring controlled arms on said cams, adapted by rotation of said shaft to project through said hollow carrier, to engage the road wheel to prevent it from rotation when in its inoperative position on said hollow carrier.

7. In a road and rail vehicle, the combina' tion of a flanged wheel, a road wheel, a hollow carrier mounted to be moved into and out of a position coaxial with respect to the axle of said vehicle. said hollow carrier, when in the coaxial position, being adapted to receive said road wheel which can be displaced from driving, connection with said flanged wheel and when out of coaxial position supports said road wheel in its inoperative position, me ans for securing said road wheel on said hollow carrier, and on the hub of said flanged wheel, a shaft mounted in said hollow car- ."er, cams mounted on said shaft, and spring controlled arms on said cams, adapted by rotation of said shaft to project through said hollow carrier, to engage the road wheel to prevent it from rotatlon when in its inopera- Eve position on said hollow carrier.

8. In a road and rail vehicle. the combination of a fixed support, a disc rotatably mounted thereon, a carrier eccentrically secured to said disc and which can be moved by rotation of said disc into and out of a position coaxial with respect totheaxle of said vehicle, a flanged wheel, a road wheel which can be slidden from the hub of said flanged wheel on to said carrier when in the coaxial position, and means for'securing saidroad wheel on said carrierandpn the hub of said flanged wheel. r 9. In a road and rail vehicle, the combination of a fixed support, a disc rotatably mounted thereon, a carrier eccentrically secured to said disc'and which can be moved by rotation of said disc into and out of a position coaxial with respect to the axle of said vehicle, a flanged wheel, a road wheel which can be slidden from the hub of said flanged wheelon to said carrier when in the coaxial position, and means for locking said road wheel against rotation when in its inoperative position on said carrier.

10. In a road and rail vehicle, the combination of a fixed support, a disc rotatably mounted thereon, a carrier eccentrically secured to said disc and which can be moved by rotation of said disc into and out of a position coaxial with respect to the axle of said vehicle, a flanged wheel, a road wheel'which can be slidden from the-hub of said flanged wheel on to said carrier when'in'the coaxial position,'-means for securing said road wheel on said carrier and on the hub of said'flanged wheel, and means for locking said road wheel against rotation when in its inoperative poition on said-carrier. I v

11. In a road and rail-vehicle, the combination of a fixed support,- a discrotatably mounted thereon, a hollow carrier eccentrically secured'to said'disc and which can be moved by rotation o fsaid disc into and out of a position coaxial with respect to the axle of said vehicle, a flanged-wheel, a road wheel which can be slidden'from the'hub of said flanged wheel on to said hollow carrier when in the'coaxi'al position, a shaft mounted in said hollow carrier, cams mounted on said shaft and spring controlled arms on said'cams and adapted by rotation of said shaft to-project through said hollow carrier to engage the roadwheel to pr event it from rotation when in its inoperative position on said hollow carrier.

"12. In a road and rail vehicle, the combination of a fixed support, a disc rotatably mounted thereon, a hollow carrier eccentrically secured to said disc and which can be moved by rotation of'said disc into and out of a position coaxial with respect to the axle ofsaid vehicle, a flanged wheel, a road wheel which can be slidden from the hub of said flanged wheel on to said hollow carrier when in the coaxial position, means for securing said road wheel on said hollow car- T101 and on the hub of said flanged wheel, a

shaft mounted in said hollow carrier, cams mounted on said shaft and spring controlled arms on-said cams and adapted by rotation of said shaft to project through said hollow carrier to engage the road wheel to prevent it LfIIQ111 rotation when in its inoperative positioinon said hollow carrier.

13. 'In a-road.andj-rail-vehicle, the combination of a fixedsupport a disc rotatably mounted thereon, a carrier ec centrically secured ;to said/disc and whichvcan be moved byrotation of said disc into and out of a posi .tion coaxial with respectito-the axle of said vehicle, a flanged wheel, a road wheel which Vcan,be, slidden from the hub of said flanged wheel onto said carrier when in the coaxial position, ,means. for securing saidroad wheel on said carrier and on the hub of-said flanged wheehand means for preventing rotation of said disc when theroad wheel is in its op- .erative or inoperative position.

let. In a road andrail vehicle, the combination of .a -fixed support, a disc rotatably mounted thereon, a carrier eccentrically secured vto'said disc andwhich can be moved :by-rotation of said disc into and out of. a position coaxia'lwithrespect to the axle of said rehicle, aflanged wheel, aroad .wheel which can'beslidden :from the hub of said flanged wheel on to said carrier when in the coaxial position, means for locking'said road wheel against rotation .when in-its inoperative position on said carrier, and means for-preventing rotation of saidrdisc'whenthe road wheel .is in its operative ,or I inoperative position.

15. In a road and railvehicle, the combination .of a fixe'dx-support, a disc rotatably -:-nounted thereon, ahollow carrier eccentricallv secured tosaid disc andwvhich can be moved bymotationof; said diSCZiIltO and out of a position-coaxial with respect to the axle ofsaid vehicle, aflanged wheel, a road-wheeliwhich can be slidden from the hub of. said flanged wheel-'on-tosaid hollowcarrier'when in the coaxial :position, :means for securing said road wheel on said hollow carrier and on the hub of said. flanged wheel, a shaft mounted in-said hollow carrier, cams mountedon said shaft and spring controlled arms on said cams adapted I byrotationof said shaft to project through said hollow carrier to engage the road wheel to'prevent it from rotation" when in its inoperative positlon on said hollow carrier,a member secured to saiddisc, two catch members carried by-said fixed support, one

of-said catch membersbeing adapted-tobe engaged by said-member when the road wheel sin its operativeposition, the other catch -member being adapted to be engaged by said :memberwhen' the road wheel 18 111 its moperative'positioutoprevent rotation of said disc.

:16. J11 a vroad and-rail vehicle, the combi- I natiomofga fixed.support,-a disc rotatably -mounted' thereon, ahollow carrier eccentricallyzsecured to said d'isc and which can be moved by rotation of=sail disc into and out 101. a position coaxial'w-ith respect to the axle ofsaid-vehicle, aflangedwheel, a road wheel which can .be slidde n from the hub-ot said flanged wheel on tosaid hollow carrier (when in the coaxial,position,'means for securing said road wheelon said-hollow carrier and on ,thehub of said vflanged wheel, a shaft mounted in said hollow carrier, cams mount- .ed on'said shaft, spring controlled arms on said cams adapted by rotation of said shaft to project through-said hollow carrier to engage the road wheel to prevent it from rotation whenin its inoperative position on said hollow carrier, a member secured to said disc, two catch members carried by said fixed support, one of said catch members being adapt ed to be engaged by said member when the road wheel is in its operative position, the othercatch member being adapted to-be en- .gaged bysaid member. whenthe road wheel is in its inoperative position so prevent rota- .tionofi said disc. i

lie 

